Diodontus insidiosus Spooner,1938


Diodontus freisei misident.


Heathland districts, largely from Dorset to Essex. There are also a few recent records from Staffordshire (Archer 2000; S. Falk, pers. comm.) and Shropshire (I. Cheeseborough 2002 and S. Falk 2012). Also occurs on the Channel Islands.

Overseas, a poorly known species; scattered widely in northern and central Europe (Lomholdt 1975-76).

Status (in Britain only)

Listed as Rare (RBD3) in both Shirt (1987) and FaIk (1991).


Open sandy situations, especially heathland and sandpits on Tertiary deposits (Falk 1991).

Flight period

June to September (based on only a few captures).

Prey collected

The prey is not known but is likely to be aphids, as in other species of the genus.

Nesting biology

Nests have been found in bare, sandy ground, both level and sloping, such as banks (Falk 1991). No more is known of the nesting biology.

Flowers visited

No information available.


No information available.

Author of profile

G W Allen

Year profile last updated